1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yanalaym [24]
2 years ago
13

2k - 3(4 - k) = 3k + 4 whats k?

Mathematics
1 answer:
neonofarm [45]2 years ago
7 0
They got it wrong it is actually k=8
You might be interested in
HELP FAST PLEASE!!! PLEASE<br><br> Indentify the interval on which the function is increasing.
Katena32 [7]
Answer: [0,3]

The line is going up from left to right between 0 and 3 on the x-axis. We use a closed bracket because it is a open circle.
5 0
2 years ago
Which of the following is an extraneous solution of the square root of -3x-2=x+2
yarga [219]

Answer:

x=-6 is an extraneous solution

Step-by-step explanation:

we have

\sqrt{-3x-2} =x+2

squared both sides

-3x-2=(x+2)^2

-3x-2=x^2+4x+4

x^2+7x+6=0

solve the quadratic equation by graphing

The solution is x=-6 and x=-1

see the attached figure

<u><em>Verify each solution</em></u>

substitute the value of x in the original expression

For x=-6

\sqrt{-3(-6)-2} =-6+2

\sqrt{16} =-4

4=-4 ----> is not true

so

Is an extraneous solution

For x=-1

\sqrt{-3(-1)-2} =-1+2

\sqrt{1} =1

1=1 ----> is true

so

Is the solution

4 0
3 years ago
Elvis and $74 .50 a month.. how much does he earn to the nearest one penny.
sdas [7]

Answer:

Part A

12 months a year means

%74.5 x 12 = $894

Part B

4 weeks in a month means

$74.5 ÷ 4 = $18.625

But rounded to the nearest penny. . .

$18.62

because in the thousandths place was a 5 and you round up when there is a 5 or above

Part C

We will go with 31 days in a month, but I will also do 30 for you

$74.5 ÷ 30 = $2.48333

But rounded to the nearest penny. . .

$2.48

because you round down when there is anything less than a 4

$74.5 ÷ 31 = $2.40322580645

But rounded to the nearest penny. . .

$2.40

because you round down when there is anything less than a 4

3 0
3 years ago
Whats -5n+12n+9+(-3) some one help me with this one
nikdorinn [45]

-5n+12n+9+(-3)

-5n+12n+9-3

7n+9-3

=7n+6

Hope this helps!

Thank you for posting your question at here on Brainly.

-Charlie

8 0
3 years ago
In a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by selecting the b
myrzilka [38]

Answer:

D) Yes. The five trials are independent, have only two outcomes, and have the same P(success); n = 5, r = 2, p = 1/6.

Step-by-step explanation:

The Number of boxes = 6

Box containing a prize = 1

Probability of success, p = box containing a price / number of boxes = 1 /6

Number of trials = 5

Probability of success on exactly 2 trials, r = 2

Hence,

P(r = 2) = nCr * p^r * (1-p)^(n-r)

n = 5 ; r = 2 ; p = 1/6

Using a binomial probability calculator :

P(r = 2) = 0.1608

8 0
3 years ago
Other questions:
  • What is (2.3x10^-3)/(4.6x10^-7) written in scientific notation? Please show how you solved this.
    11·1 answer
  • Find the length of the radius of a circle whose center is at (3,4) and passes through (-3, -4).
    6·1 answer
  • PLEASE HELP ME W THIS !! I RLLY SUCK AT MATH LOL
    15·1 answer
  • Which parabola will have a minimum value vertex? On a coordinate plane, a parabola opens down with x-intercepts at (negative 2.2
    14·1 answer
  • It's simplify of Indices<br>please help asap, will mark brainliest answer to correct answer ​
    5·1 answer
  • Each year, the number of students taught by Mr. Wright increases by 2. The first year, he taught 18 students. The total number o
    12·2 answers
  • The solution set of the inequality 1 + 2y ​
    5·1 answer
  • Please help please help
    13·1 answer
  • you need a piece of paper to measure 64.25 cm. if u tape two together that each measure 38.4 cm, how much do u need to cut off?
    10·1 answer
  • Can someone help me, please
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!